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Physics Past Questions

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4,719 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10
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Past Questions

4,719 questions
All JAMB WAEC NECO CUSTOM
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Question 1 of 20 4,719 total questions
Question 1741
waec 1995
A listener can detect the instrument from which a note is being sounded because different instruments produce the same note with a different.
Afrequencies
Bpitches
Cloudness
Dintensities
Eovertones
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Question 1742
waec 1995
An alternating voltage with a frequency of 50Hz has a period of
A0.02s
B0.05s
C0.20s
D0.50 s
E50.00s
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Question 1743
waec 1995
The period of a wave is 0.02 second. Calculate its wavelength if its speed is 330 ms-1
A6.6m
B5.0m
C4.0m
D3.3m
E2.0m
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Question 1744
waec 1995
A sound note of frequency 250 Hz and wavelength 1.3m is produced at a point near a hill. If the echo of the sound is received 1 second later at the point, how far away is the hill from the point?
A131.3m
B162.5m
C248.7m
D251.3m
E325.0m.
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Question 1745
waec 1995
Which of the following wave characteristics can be used to distinguish a transverse wave from a longitudinal wave?
AReflection
BRefraction
CDiffraction
DPolarization
EInterference
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Question 1746
waec 1995
Which of the following media allow(s) the transmission of sound wave through them? I. Air II. Liquid III. Solid.
AI only
BII only
CIII only
DI and II only
EI, II and III.
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Question 1747
waec 1995
Sixty complete waves pass a particular point in 4s. lf the distance between three successive troughs of the waves is 15m, calculate the speed of the waves,
A300.0ms-1
B225.0ms-1
C112.5ms-1
D75.0ms-1
E16.0ms-1
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Question 1748
waec 1995
A wire is stretched between two points, 1m apart. If the speed of the wave generated on plucking the wire is 200ms-1, what is the minimum frequency which will resonate with the wire?
A50 Hz
B75 Hz
C100 Hz
D150 Hz
E200 Hz
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Question 1749
waec 1995
An object is placed on the principal axis at the centre of curvature of a concave mirror. The image of the object formed by the mirror is
Areal, inverted and magnified
Bat the principal focus
Creal and diminished
Derect and virtual
Eat the centre of curvature
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Question 1750
waec 1995
Which of the following is not self-luminous?
AIncandescent electric bulb
BIncandescent fluorescent tube
CLighted candle
DThe moon
EThe sun
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Question 1751
waec 1995

The image of any real object formed by a diverging lens is always

Ainverted
Bmagnified
Cerect
Dreal
Ethe same size as the object
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Question 1752
waec 1995

Light travels in straight lines. In which of the following is this principle manifested? I. Pinhole camera II Formation of shadows III. Diffraction of light IV. Occurrence of eclipse

AI and III only
BII and III only
CI, II and III only
DI, II and IV only
EI, II, III and IV
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Question 1753
waec 1995
A ray of light is incident on a body x as shown in the diagram above. What is the refractive index of the body?
A1.63
B1.50
C1.49
D1.33
E1.02
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Question 1754
waec 1995
A ray of light is incident on mirror m1 and after reflection is incident on mirror m2 as shown in the diagram, calculate the angle of reflection of the ray at mirror m2
A120o
B90o
C60o
D45o
E30o
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Question 1755
waec 1995

When two objects P and Q are supplied with the same quantity of heat, the temperature change in P is observed to be twice that in Q. lf the masses of P and Q are the same, calculate the ratio of the specific heat capacities of Q to P.

A4 : 1
B2 : 1
C1 : 1
D1 : 2
E1 : 4.
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Question 1756
waec 1995

How much heat is required to convert 20 g of ice at 0oC to water at the same temperature? (Specific latent heat of ice = 336 J g-1)

A1.35 x 103J
B5.38 x 103J
C6.72 x 103J
D7.06 x 103J
E8.06 x 103J
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Question 1757
waec 1995
An iron rod of mass 2kg and at a temperature of 280oC is dropped into some quantity of water initially at a temperature of 30oC. lf the temperature of the mixture is 70oC, calculate the mass of the water. (Neglect heat losses to the surroundings). Specific heat capacity of iron = 460 J kgK) (Specific heat capacity of water = 4200 Jkg K)
A0.58kg
B0.77kg
C1.15kg
D1.50kg
E2.04kg
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Question 1758
waec 1995

The temperature of glass vessel containing 100cm3 of mercury is raised from 10oC to 100oC. Calculate the apparent cubic expansion of the mercury. (Real cubic expansivity of mercury = 1.82 x 10-4K-1) (Cubic expansivity of glass = 2.4 x 10-5K-1)

A0.52cm3
B1.42cm3
C1.87cm3
D5.22cm3
E14.22cm3
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Question 1759
waec 1995

The pressure of a given mass of gas changes from 200 Nm2 to 100 N m2, while its temperature drops from 127oC to - 73oC. Calculate the radio of the final volume of the gas to its initial volume.

A2.4:1
B2.0:1
C1.2:1
D1.0:1
E1.0:2
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Question 1760
waec 1995

An air bubble of volume 2 cm\(^3\) is formed 20m under water. What will be its volume when it rises to just below the surface of the water if the atmospheric pressure is equivalent to a height of 10m of water?

A6cm3
B4cm3
C3cm3
D2cm3
E1cm3
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